单触法可编程控制器程序设计

The Single Triggring Method for the Programming of Programmable Controllers

用于顺序过程控制的程序设计方法———单触法，规则、快捷、应用简便，可用于可编程控制器（ＰＣ）及硬件继电器控制电路的程序设计。阐述了设计原则与设计步骤，说明了单一顺序、并发顺序、选择顺序、循环等不同结构控制程序的设计方法，讨论了该方法的限制及实用价值。

The single triggering method, the programming method of sequence process controlment, can be applied to both programming method of programmable controllers and hardware relay circuits. After discussing the designing principle and steps, the programming method for different structure of controlling procedure are illustrated, including single sequencing, simultaneous parallel channel, alternative parallel channel and loop. Its limit and availability are discussed at last.